@article{article34f87d8a, title = {First stars X. The nature of three unevolved carbon-enhanced metal-poor stars}, author = {Sivarani, T and Beers, T. C and Bonifacio, P and Molaro, P and Cayrel, R and Herwig, F and Spite, M and Spite, F and Plez, B and Andersen, J and Barbuy, Beatriz Leonor Silveira and Depagne, E and Hill, V and François, P and Nordström, B and Primas, F}, year = {2006}, doi = {10.1051/0004-6361:20065440}, journal = {Astronomy and Astrophysics} }